source: src/LinkedCell/LinkedCell_Model.hpp@ 029870

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Last change on this file since 029870 was 029870, checked in by Frederik Heber <heber@…>, 13 years ago

FIX: LinkedCell and LinkedCell_Model now store _const_ TesselPoint ref in their lists and maps.

  • this mainly stemmed from changing LinkedCell_Model::addNode() and is required as World's lastChanged is a const ref (and we do not need to changed the object itself anyway, we are only bookkeeping!).
  • Property mode set to 100644
File size: 3.6 KB
Line 
1/*
2 * LinkedCell_Model.hpp
3 *
4 * Created on: Nov 15, 2011
5 * Author: heber
6 */
7
8#ifndef LINKEDCELL_MODEL_HPP_
9#define LINKEDCELL_MODEL_HPP_
10
11// include config.h
12#ifdef HAVE_CONFIG_H
13#include <config.h>
14#endif
15
16#include <boost/multi_array.hpp>
17#include <map>
18
19#include "CodePatterns/Observer/Observer.hpp"
20#include "LinearAlgebra/defs.hpp"
21#include "LinearAlgebra/RealSpaceMatrix.hpp"
22#include "LinkedCell/types.hpp"
23
24class Box;
25class IPointCloud;
26class LinkedCell_ModelTest;
27class TesselPoint;
28class Vector;
29
30namespace LinkedCell {
31
32 /** This is the model in the MVC ansatz for the LinkedCell structure.
33 *
34 * \sa linkedcell
35 *
36 * The model represents a certain linked cell structure with a specific mesh
37 * size (i.e. edge length). Note that all coordinates are internally always
38 * transformed to [0,1]^3, hence we require the domain (\ref Box) for the
39 * transformation matrices.
40 *
41 * This class stores internally list of particles in three-dimensional arrays.
42 *
43 */
44 class LinkedCell_Model : public Observer
45 {
46 //!> grant unit test access to internal structure
47 friend class ::LinkedCell_ModelTest;
48 public:
49 LinkedCell_Model(const double radius, const Box &_domain);
50 LinkedCell_Model(IPointCloud &set, const double radius, const Box &_domain);
51 ~LinkedCell_Model();
52
53 typedef std::pair<tripleIndex,tripleIndex> LinkedCellNeighborhoodBounds;
54
55 const tripleIndex getIndexToVector(const Vector &position) const;
56 const LinkedCellNeighborhoodBounds getNeighborhoodBounds(const tripleIndex &index, const tripleIndex &step = NearestNeighbors) const;
57 const tripleIndex getStep(const double distance) const;
58 const LinkedCell& getCell(const tripleIndex &index) const;
59 bool checkArrayBounds(const tripleIndex &index) const;
60 void applyBoundaryConditions(tripleIndex &index) const;
61
62 void addNode(const TesselPoint *Walker);
63 void deleteNode(const TesselPoint *Walker);
64 void moveNode(const TesselPoint *Walker);
65
66 void setPartition(double distance);
67
68 //!> static indices to get nearest neighbors as default argument
69 static tripleIndex NearestNeighbors;
70
71 protected:
72 void update(Observable *publisher);
73 void recieveNotification(Observable *publisher, Notification_ptr notification);
74 void subjectKilled(Observable *publisher);
75
76 private:
77 void AllocateCells();
78 void Reset();
79 void insertPointCloud(IPointCloud &set);
80
81 void startListening();
82 void stopListening();
83
84 LinkedCellArray::index getSize(const size_t dim) const;
85
86 typedef LinkedCellArray::size_type size_type;
87 typedef LinkedCellArray::iterator iterator3;
88 typedef boost::subarray_gen<LinkedCellArray, NDIM-1>::type::iterator iterator2;
89 typedef boost::subarray_gen<LinkedCellArray, NDIM-2>::type::iterator iterator1;
90
91 typedef std::map<const TesselPoint *, LinkedCell *> MapPointToCell;
92
93 //!> internal shape of multi_array
94 size_type *internal_Sizes;
95
96 //!> internal index of current cell, this makes going through linked cell faster
97 tripleIndex internal_index;
98
99 //!> Lookup map to get the cell for a given TesselPoint
100 MapPointToCell CellLookup;
101
102 //!> edge length per axis
103 boost::array<double, 3> EdgeLength;
104
105 //!> Linked cell array
106 LinkedCellArray N;
107
108 //!> matrix to divide Box with
109 RealSpaceMatrix Dimensions;
110
111 //!> matrix to transform normal position to obtain partitioned position
112 RealSpaceMatrix Partition;
113
114 //!> Box with matrix transformations and boundary conditions
115 const Box &domain;
116 };
117
118}
119
120// inlined functions
121#include "LinkedCell_Model_inline.hpp"
122
123#endif /* LINKEDCELL_MODEL_HPP_ */
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